KR100345649B1 - Ground Installation Substation Package - Google Patents

Abstract

The ground-mounted integrated water substation facility according to the present invention is characterized by including an inlet, a special high platen, a low platen, an instrument box, and a ground terminal box. The extra high pressure current supplied from the inlet is passed through the inlet to the extra high plate installed on the ground. In the special high pressure plate, the high voltage is converted into the working voltage by a transformer. Low platens, instrument boxes and ground boxes provide an environment for the maintenance and management of water substation equipment. The low platen, instrument box and ground box are installed outside the storage box of the high platen. The ground-mounted integrated water substation facility according to the present invention provides high stability and reliability that the conventional H-type water substation facility does not provide. In addition, the convenience of installation, maintenance and management, and relocation can reduce the additional costs incurred by the user. In addition, the facility can be recycled, and efficient use of resources can be achieved.

Description

Ground Installation Substation Package {Ground Installation Substation Package}

The present invention relates to a water substation facility, and more particularly, to a water substation facility in which the substation facility is implemented as an integrated box.

In the related art, as shown in FIG. 1, the conventional water substation facility for supplying temporary power is installed in the air, not on the ground. A separate pole is erected around the inlet which supplies temporary power, and horizontal beams are installed between both poles, and a transformer is installed on the horizontal beams. Since the shape of the conventional water substation equipment is similar to the H of the English alphabet, it is called an H-type water substation equipment.

H-type water substation facilities have many disadvantages in terms of stability and reliability, maintenance and repair of the facilities compared to the ground-mounted integrated water substation facilities according to the present invention. H-type water substation facilities are exposed to weathering of special high-pressure equipment and charging parts, and there is a high risk of accidents, and the occurrence of electric shocks by cranes or poles is frequent. Even if a protective fence for an H-type water substation facility is installed, stability and reliability cannot be greatly improved. In addition, since it is installed in the air at a considerable height, cranes and distribution electricians must be mobilized for maintenance, inspection, and repair. This leads to an increase in maintenance, maintenance and inspection costs. In addition, if it is necessary to relocate due to the change of the place requiring temporary power, the H-type water substation facility should be installed after dismantling the whole. At this time, a significant relocation cost is incurred, and power is not supplied for about two days for relocation. In addition, when the water substation equipment is demolished, it is difficult to recycle and incurs considerable demolition costs, and the electric poles installed around the inlet can be used as waste poles to generate industrial waste.

The present invention is to solve the problems of low reliability and stability, high maintenance and repair costs, inconvenient relocation, and not recycled at the time of removal of the H-type water substation equipment of the prior art as described above, inlet, extra high platen, Implement the ground-mounted integrated water substation facility consisting of low platen, instrument box and ground terminal box.

The present invention implements the water substation facility in a closed storage box isolated from the outside and installed on the ground, it is possible to overcome the problems of the conventional invention. By implementing a closed storage box that is isolated from the outside, it is blocked from weathering to improve stability and reliability, and can be installed on the ground to prevent electric shock accidents caused by cranes or poles. In addition, easy access to the water substation facilities can reduce the maintenance, maintenance and management costs.

Water substation facility according to the present invention is implemented integrally with a closed storage box. Therefore, it is possible to relocate the site within a short period of time without incurring almost any cost, and it is easy to dismantle and reuse after use of the water substation facility. Furthermore, the water substation facility according to the present invention has a transformer-closed storage box. Since they are installed separated from each other, the transmission of vibration from the transformer to the closed storage box is blocked in advance, and eventually, the water substation facility according to the present invention has an advantage of minimizing unnecessary noise by the transformer while forming a ground-mounted structure. The physical reliability of other devices secured in a closed storage box is improved.

1 is a side view of a conventional H-type substation facility.

Figure 2 is a detailed view of the inlet portion of the ground-mounted integrated water substation facility according to the present invention.

Figure 3 is a detailed view of the underground laying of the underground incoming line connected to the special high pressure plate installed on the ground from the inlet.

4 is a sectional front view of the special high pressure plate of the ground-mounted integrated water substation facility according to the present invention.

5 is a circuit diagram of components constituting the transformation process.

In order to solve the above problems, the ground-mounted integrated water substation facility according to the present invention largely includes the inlet, extra high platen, low platen, instrument box, ground terminal box.

The extra high pressure current supplied from the inlet is passed through the inlet to the extra high plate installed on the ground. The lead portion includes a cable head (CH) 60 for preventing a leakage current of a high voltage current, an extra high voltage cable 70 that is a lead wire, a steel pipe 80, and a five band 90. Since the extra high voltage current passes through the inlet, the cable head 60 and the cable 70 suitable for the characteristics of the extra high pressure current are used. The connection to the special high pressure plate on the ground is made by embedding the incoming line 70 in the ground for safety.

In the special high pressure plate, the high voltage is converted into the working voltage by the transformer 50. The special high pressure plate is an automatic indoor section switch (AISS) 100 or a line disconnect switch (LDS), a lightning arrester (LA) 30, a power selected by a power supply amount. A fuse (PF) 110, a metering out fit (MOF) 40, and a transformer (TR) 50.

Low platens, instrument boxes and ground boxes provide an environment for the maintenance and management of water substation equipment. In the ground-mounted integrated water substation facility according to the present invention, the low platen, the instrument box and the ground box are installed outside the high-pressure plate.

The low platen provides an environment easily accessible to the administrator for the maintenance and management of the platen installed on the ground. The low platen includes a no fuse breaker (NFB), a power factor correction capacitor, an ammeter (AM), and a voltmeter (VM).

The instrument box provides an environment for checking and reading the amount of power used by the water substation equipment. The instrument box includes a demand meter (DM) 120.

The grounding box provides an environment for checking the grounding condition of ground-based water substations. For this purpose, the earthing terminal box shall include an instrument indicating the earthing condition and earth resistance.

Hereinafter, the ground-mounted integrated water substation facility according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a water substation facility by the conventional method. As shown in Fig. 1, the existing water substation equipment has a pole 2 standing around the inlet 1, and a horizontal beam 3 is installed between the inlet 1 and the pole 2, Secure space for installation of substation equipment. As shown in Figure 1, it can be seen that the transformer 50 is located on the horizontal beam. As described above, the existing water substation equipment has a problem of stability and reliability due to the high-voltage power source is exposed to weathering, and there is a high risk of electric shock accidents of cranes and pole transporters that pass around the water substation facilities. In addition, because they are installed on the ground at a considerable height, they incur significant costs of maintenance, operation, management, and transfer.

2 shows an inlet of the water substation facility according to the present invention. Since a high voltage current flows in the lead portion, a cable head 60 and an extra high voltage cable 70 serving as a lead wire are used to prevent leakage current of the high voltage current. The lead wire 70 through which the high pressure current flows is coated on the steel pipe 80 for safety, and fixed to the pipe band 90 to guide the ground.

3 shows the underground embedding of the incoming line to the ground. The lead wire 70 coated on the steel pipe 80 and guided to the ground is connected to the special high pressure plate through the ground for safety. The burial depth of the tugboat depends on the presence of external pressure on the ground. If there is no external pressure, the embedding depth is about 600 mm, and when there is an external pressure such as a traffic passage, it is about 1200 mm. The circumference | surroundings of a cable are covered with sand 71 first, and the protection board 72 is provided in the sand upper part. It is covered with the reburying soil 74 again on the protection board 72, and it shows that the extra-high pressure lead-in line 70 is embedded with the extra high pressure embedding tape 73 in the reburying soil 74.

4 shows the configuration of the extra high platen. The lead wire 70 is connected to the extra high platen through the lower surface of the extra high platen. The lead wire 70 is connected to the components of the high voltage platen through the cable head 60 for preventing leakage current of the high voltage current. After passing through the cable head 60, the failure section is connected to the automatic air switch 100. Failure section automatic air switch 100 serves as a switch for automatically separating the failure section when a failure section occurs. When a problem occurs in the water substation, it serves to prevent the problem of the water substation to spread to other places. In the embodiment according to the present invention, when the supply power is 300 kW or less, a special high pressure switch (LDS: line disconnect switch) is used in place of the automatic fault switch 100 of the fault zone. In another embodiment, an automatic section switch (ASS) may be used in place of the automatic fault switch. Fault automatic switch (ASS) operates in a barrel filled with oil, so it can be used for outdoor installation of automatic switch. However, there is a risk of fire due to oil, there is a disadvantage that can not be confirmed whether the opening and closing of all three-phase current. Therefore, when installing the water substation facility in the closed storage box 4 as in the present invention, it is preferable to use the failure section automatic air switch 100 rather than the use of the failure section automatic switch (ASS). After passing through the automatic failure section 100, it is connected to the power fuse 110 and the arrester 30. The lightning arrester 30 is a device for protecting the water substation facility in the event of instantaneous high voltage current caused by lightning. The power fuse 110 serves to protect the user and the water substation facility of the power supplied by the water substation facility by blocking the fault current. The power fuse 110 may use a general type and a current-limiting type. In a preferred embodiment of the present invention, a general power fuse 110 is used. The high voltage current passing through the power fuse 110 is supplied to the transformer transformer transformer 40 and the transformer 50 for the instrument. Transformer transformer current transformer 40 is a transformer for transmitting voltage and current to the measuring equipment of the water substation equipment. Since the high voltage current supplied to the water substation facility cannot be directly used in the measuring instrument 120, it is supplied through the transformer 50. The high voltage current passed through the transformer transformer current transformer 40 is converted into a suitable voltage and current in the measuring instrument, and is connected to the meter 120 of the instrument box installed outside the extra high pressure part. The high voltage current supplied to the transformer 50 is converted to suit the voltage and current for actual use. In a preferred embodiment of the present invention, a 22900V power source is converted through a transformer to 110V, 220V, or 380V, which is the actual voltage used.

As shown in Fig. 1 and Fig. 4, when compared with the components of the conventional H-type water substation facility and the ground-mounted integral water substation facility according to the present invention, an interrupt switch (IS) 10 and a cut-off switch (COS) : A fault zone automatic lift switch 100 is used at the position of the cut-off switch 20, and a power fuse 110 is used to replace the cut-off switch 20 before the high voltage current is connected to the transformer 50. It can be seen. In fact, the automatic fault automatic switch 100 of the fault section according to the present invention replaces the automatic section automatic switch (ASS) of the conventional H-type water substation equipment, and the special high voltage switch (LDS) replaces the interrupt switch 10. If the power supply is 300 kW or less, the existing H-type water substation equipment uses the interrupt switch 10, in the embodiment according to the present invention because the special high-voltage switch (LDS). As described above, the automatic fault opening / closing switch 100 according to the present invention has stability against fire and convenience of fire compared to the automatic fault opening / closing device ASS. And, the cut-off switch 20 provided in the input portion of the transformer transformer current transformer 40 of the existing H-type water substation equipment is not used in the embodiment according to the present invention.

As shown in Fig. 4, since the high pressure current flows through the special high pressure plate, it is isolated from the outside by the closed storage box 4. The closed storage box 4 is erected and disposed on the foundation construction surface 5 placed on the ground, and the bottom surface is opened so that the foundation construction surface 5 is exposed, and a hexagonal shape in which a series of storage spaces are defined is defined. At this time, elements except the transformer 50 among the components of the high pressure plate are integral with the closed storage box 4 and fixed, installed and moved on its storage space. In contrast, the transformer 50 is moved and installed separately from the closed storage box 4, for example, the transformer 50 is directly installed on the foundation work surface 5 on which the closed storage box 4 is installed. Normally, when the transformer 50 is driven, a certain amount of vibration cannot inevitably occur. At this time, if no further action is taken, the vibration of the transformer 50 continues to the closed storage box 4. Transmitted, resulting in a total ringing of the closed storage box (4), and eventually, the water substation equipment may cause a problem of generating unnecessary noise, deterioration of the mounting reliability of each component disposed in the closed storage box, etc. However, as in the case of the present invention, when the transformer 50 is installed directly on the ground foundation surface 5, the vibration of the transformer is not transmitted directly to the closed storage box 4. , After all, transformers (50) Even when driven, the closed storage box 4 does not cause unnecessary noise. In addition, when the vibration transmission of the transformer 50 is blocked and unnecessary ringing of the closed storage box 4 is prevented, the closed storage box 4 is prevented. Other components integrally fixed to the can also easily escape from the influence of the transformer 50, and, as a result, the components can maintain a stable mounting reliability for a long time. As shown in FIG. 50 forms an upper and lower laminar structure with the previous fault section automatic air switch 100, and is located in the lower end part of the fault section automatic air switch, for example. In this case, the closed storage box (4) can easily obtain the advantage that the width of the width is significantly reduced compared to the structure in which the failure section automatic lift switch 100 and the transformer 50 is horizontally long, and eventually closed The mold storage box 4 can maintain a minimum installation area within a given condition. On the other hand, the inside of the closed storage box 4 generates a lot of heat due to the transformation process in the high pressure plate. Therefore, the release of generated heat and the heat insulation from solar heat are necessary for normal operation inside the storage box 4. To this end, in a preferred embodiment of the present invention, the upper surface of the closed storage box 4 is insulated using styrofoam or the like, and a fan is installed in a part of the storage box to circulate the internal air.

Although not shown in FIG. 4, a low platen, a ground box, and an instrument box are provided outside the closed storage box 4 of the high platen.

The low platen provides an environment for the manager's access for the management of water substation equipment. For example, in case of failure of the water substation facility or when the water substation facility is not used, the mandatory operation of the water substation facility by the manager is required. Can be. In addition, a voltmeter VM and an ammeter AM may be provided to check the state of use. In the embodiment according to the present invention, the low platen is manufactured separately from the high platen is installed outside the storage box of the special platen to facilitate the access of the manager.

The instrument box includes the components necessary to perform the necessary measurement by using the voltage and current supplied through the instrument transformer current transformer 40 of the special high pressure plate. By installing the meter 120 in the instrument box, it is possible to check the total power consumption and the current power consumption, respectively.

The grounding box provides an environment for checking the grounding condition of the high voltage platen and for measuring the ground resistance value.

FIG. 5 shows a circuit through which the high voltage current passes in the process of converting the high voltage current supplied from the inlet 1 into actual use power. Lead wire 70, cable head 60, fault section automatic lift switch 100, lightning arrester 30, power fuse 110, transformer transformer 40 for the instrument, meter 120 and transformer 50 Shows how interconnections and transformers work well.

As described above, the ground-mounted integrated water substation facility according to the present invention provides high stability and reliability that the conventional H-type water substation facility does not provide. In addition, the convenience of installation, maintenance and management, and relocation can reduce the additional costs incurred by the user. In addition, the facility can be recycled, and efficient use of resources can be achieved.

Claims (9)

An instrument box equipped with an inlet unit for transferring the extra high voltage current from the inlet to the extra high plate, the extra high pressure plate for converting the extra high voltage current into a used voltage current, a low plate for providing a management environment to the manager, It includes a ground terminal box indicating the ground state of the water substation equipment, The special high pressure plate is placed upright on the foundation construction surface placed on the ground, the lower surface is opened so that the foundation construction surface is exposed, the closed storage box defining a series of storage space, and on the storage space of the closed storage box It is fixed and installed integrally, and is electrically connected to the lead-in part, and is automatically fixed on the storage space of the closed storage box and a fault zone automatic lift switch for automatically separating the fault zone of the special high voltage current. It is installed, electrically connected to the failure section automatic lift switch, a power fuse for selectively blocking the accident current, and covered by the closed storage box to be blocked from the outside, the closed storage can maintain a minimum size The fault zone so as to form an upper and lower laminar structure with the automatic lift switch, and electrically connected to the power fuse, In the ground-mounted integrated water substation facility including a transformer for converting the extra-high voltage through the current into a voltage / current for actual use, The transformer is installed on the ground-mounted water substation facility, characterized in that directly installed on the foundation construction surface in a state separated from each other with the closed storage box, so that vibration transmission to the closed storage box can be blocked. delete delete delete delete delete delete delete delete